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參數(shù)資料
| 型號(hào)： | EM6517 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 4位微控制器 |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 4位單片機(jī)的小型通用紅外遙控器 |
| 文件頁(yè)數(shù)： | 51/66頁(yè) |
| 文件大小： | 762K |
| 代理商： | EM6517 |
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EM6517
FOR ENGINEERING ONLY
EM Microelectronic-Marin SA, 09/99, Rev. A/277
51
19.1.4 SWB high impedance state
By default the SWB Clock output is driven to logic ‘0’
outside a transmission. The user may choose high
impedance state on Clock output instead of logic’0’.
By default the SWB Data output is driven to logic ‘0’
outside a transmission. The user may choose high
impedance state on Data output instead of logic’0’.
19.1.5 Debouncer Frequency Option
By default the debouncer frequency is Ck[11]. The
user may choose Ck[14] instead of Ck[11].
Ck[14 ]corresponds to maximum 0.25ms debouncer
time in case of a 32kHz oscillator.
19.1.6 System Frequency
By default the system frequency is defined as being
32kHz. Higher Frequencies are possible. A second
setting guarantees typical write times for the EPROM
at a system frequency of 128 kHz.
19.1.7 Additional mask options
Other functions and parameters may also be changed using the metal 1 mask (i.e SVLD levels). Please
contact EM Marin if you have a special request.
The customer should specify the required options at the time of ordering (for ROM
Version only). A copy of the pages 48 to 51
as well as the Software ROM
characteristic file generated by the assembler (*.STA) should be attached to the
order. Also the Customer package marking should be defined at that time.
Option
Name
NO
A
Yes
B
MSWBZ_Clk
SWB Clock high
impedance state.
X
Option
Name
NO
A
Yes
B
MSWBZ_Dat
SWB Data high
impedance state.
X
Option
Name
Ck[11]
A
X
Ck[14]
B
MDeb
Debouncer freq.
Option
Name
32kHz
128kHz
A
B
MFreq
System frequency
= Xtal frequency
X
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